The dynamics of sandwich conical shells under nonstationary loading is studied. The equations of motion of sandwich conical shells with a discrete symmetric lightweight ribbed core under axisymmetric impulsive loading are derived. In analyzing elements of an elastic shell, the Timoshenko theory of shells and rods is combined with independent static and kinematic hypotheses for each layer. The load-bearing layers in non-symmetric shells are made of dissimilar materials. The equation of motion for a non-symmetric sandwich conical shell with a discretely inhomogeneous core is derived using the Hamilton–Ostrogradsky variational principle. The numerical results on the vibrations of a sandwich elastic shell are obtained using the finite-element method. The influence of the physical and mechanical parameters of symmetric and non-symmetric layers on the stress–strain state of shells under the axisymmetric internal impulsive loading is studied. New mechanical effects are established.
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Translated from Prykladna Mekhanika, Vol. 58, No. 4, pp. 45–58, July–Augus 2022.
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Lugovyi, P.Z., Gaidaichuk, V.V., Orlenko, S.P. et al. Dynamics of Sandwich Conical Shells with a Discretely Inhomogeneous Core Under Nonstationary Loading. Int Appl Mech 58, 410–422 (2022). https://doi.org/10.1007/s10778-022-01166-x
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DOI: https://doi.org/10.1007/s10778-022-01166-x